From 5e95e7f6ac3ed7d8b8a01ef1f3477ec2dd24cba2 Mon Sep 17 00:00:00 2001
From: Folkert de Vries <folkert@folkertdev.nl>
Date: Sun, 28 Jun 2026 12:42:03 +0200
Subject: [PATCH] fix ICE when using `#[no_mangle]` on a generic item

---
 .../issues/issue-154385-no-mangle-generic.rs    | 17 +++++++++++++++--
 .../issue-154385-no-mangle-generic.stdout       |  4 +++-
 2 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/tests/pass/issues/issue-154385-no-mangle-generic.rs b/tests/pass/issues/issue-154385-no-mangle-generic.rs
index 0989cdd86a..90fa021863 100644
--- a/tests/pass/issues/issue-154385-no-mangle-generic.rs
+++ b/tests/pass/issues/issue-154385-no-mangle-generic.rs
@@ -1,9 +1,22 @@
 fn main() {
-    foo(1234);
+    generic_type(123);
+    generic_const::<456>();
+    generic_lifetime(&789);
 }
 
 #[allow(no_mangle_generic_items)]
 #[unsafe(no_mangle)]
-fn foo<T: std::fmt::Debug>(value: T) {
+fn generic_type<T: std::fmt::Debug>(value: T) {
     println!("{value:?}");
 }
+
+#[expect(no_mangle_generic_items)]
+#[unsafe(no_mangle)]
+fn generic_const<const N: usize>() {
+    println!("{N}");
+}
+
+#[unsafe(no_mangle)]
+fn generic_lifetime<'a>(x: &'a i32) {
+    println!("{x}");
+}
diff --git a/tests/pass/issues/issue-154385-no-mangle-generic.stdout b/tests/pass/issues/issue-154385-no-mangle-generic.stdout
index 81c545efeb..af7864ba2f 100644
--- a/tests/pass/issues/issue-154385-no-mangle-generic.stdout
+++ b/tests/pass/issues/issue-154385-no-mangle-generic.stdout
@@ -1 +1,3 @@
-1234
+123
+456
+789